Agricultural pesticide residues in water from a karstic aquifer in Yucatan, Mexico, pose a risk to children’s health

Perera-Ríos, Javier; Ruiz-Suarez, Elizabeth; Bastidas-Bastidas, Pedro de Jesús; May-Euán, Fernando; Uicab-Pool, Gloria de los Ángeles; Leyva-Morales, José Belisario; Reyes‐Novelo, Enrique; Pérez-Herrera, Norma

doi:10.1080/09603123.2021.1950652

Cited by 18 publications

(5 citation statements)

References 37 publications

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“…Figure 6 presents the frequency of detection of pesticides in the soil from the sampling carried out. It is important to mention that the organochlorine insecticide β -BCH, which according to the results of the surveys, is not currently used by farmers in the region and was analyzed as a control during the field phase, was detected in 42.85% (Figure 6) of the samples with a maximum concentration of 2.1327 µg kg -1 (Figure 4H), which demonstrates its persistent characteristics in soils and the risk associated with aquifer contamination (Perera-Rios et al, 2021). This shows that risk mitigation measures for phytosanitary contaminants shall be taken as soon as possible and carried out through legal and communicative actions that promote awareness among farmers to reduce or definitively suspend their use, since the risk may persist over time, it may compromise food and water security in a region that is mainly supplied by groundwater.…”

Section: Resultsmentioning

confidence: 99%

Organochlorine and organophosphate pesticides in soils of a vulnerable area from an aquifer in Northern Colombia

Pinto

Vergara-Flórez

Marrugo‐Negrete

2023

Rev. bras. eng. agríc. ambient.

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The Morroa aquifer, which is an essential source of water supply in Sucre, Colombia, with more than 500,000 users, may be at risk because of pesticide contamination that comes from different agricultural activities. The aim of this research was to evaluate the relationship between the presence of pesticides and the physicochemical properties of soils in the most vulnerable areas of the Morroa aquifer. Therefore, farmers were surveyed about pesticide usage and soil samples which were taken for analysis of pesticide and physicochemical properties. The results demonstrated that soils in these areas were relatively homogeneous in terms of texture, pH, cation exchange capacity and organic matter content. Pesticides detected in these soils were malathion, β-BCH, p-p’DDE, m-p’DDD, p-p’DDT, endosulfan, endrincetone, chlorpyrifos, dieldrin, endosulfan-sulfate, heptachlor-epoxide, and parathion. Physicochemical properties such as pH and texture of soils and intrinsic characteristics of the pesticide were found as the most influential variables according to statistical results. This study also presents a map of the spatial distribution of pesticide concentration according to the concentration of pesticides, which constitutes an important tool for the planning of agricultural activities that supports decision-making and the implementation of measures to mitigate potential impacts caused by pesticide pollution.

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Section: Resultsmentioning

confidence: 99%

Organochlorine and organophosphate pesticides in soils of a vulnerable area from an aquifer in Northern Colombia

Pinto

Vergara-Flórez

Marrugo‐Negrete

2023

Rev. bras. eng. agríc. ambient.

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“…Furthermore, NaHS treatment might regulate TBW (Tables 1, 2), change soil physicochemical parameters (Table 3), and regulate the soil microbial community (Figs. 6,7,8). H 2 S possesses several biological activities, including cell signaling and antibacterial and antifungal properties 23,24,26 .…”

Section: Discussionmentioning

confidence: 99%

“…Agrochemicals are frequently used to control bacterial wilt 1,7 . Nevertheless, excessive agrochemical use can have major adverse effects, including the spread of resistant strains and environmental threats 8,9 . Prevention research frequently uses agricultural controls such as resistant cultivars, crop rotation, and tillage control 3,6 .…”

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confidence: 99%

Effect and mechanism of NaHS on tobacco bacterial wilt caused by Ralstonia solanacearum

Wen

Guo

Zhao

et al. 2023

Sci Rep

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Since its discovery as a third unique gaseous signal molecule, hydrogen sulfide (H2S) has been extensively employed to resist stress and control pathogens. Nevertheless, whether H2S can prevent tobacco bacterial wilt is unknown yet. We evaluated the impacts of the H2S donor sodium hydrosulfide (NaHS) on the antibacterial activity, morphology, biofilm, and transcriptome of R. solanacearum to understand the effect and mechanism of NaHS on tobacco bacterial wilt. In vitro, NaHS significantly inhibited the growth of Ralstonia solanacearum and obviously altered its cell morphology. Additionally, NaHS significantly inhibited the biofilm formation and swarming motility of R. solanacearum, and reduced the population of R. solanacearum invading tobacco roots. In field experiments, the application of NaHS dramatically decreased the disease incidence and index of tobacco bacterial wilt, with a control efficiency of up to 89.49%. The application of NaHS also influenced the diversity and structure of the soil microbial community. Furthermore, NaHS markedly increased the relative abundances of beneficial microorganisms, which helps prevent tobacco bacterial wilt. These findings highlight NaHS's potential and efficacy as a powerful antibacterial agent for preventing tobacco bacterial wilt caused by R. solanacearum.

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“…The accumulation of pesticides in aquifers poses serious environmental and health risks, as these water sources are used for drinking water worldwide. Severe effects on human health resulting from significantly prolonged exposure and accumulation are possible (Zhang, et al, 2006;Bhandari, et al, 2020;Perera-Rios, et al, 2022;Ruomeng, et al, 2023). EOCs are widely used and can accumulate in the environment through various sources.…”

Section: Introductionmentioning

confidence: 99%

Occurrence and path pollution of emerging organic contaminants in mineral water of Hranice hypogenic Karst

Oppeltová,

Vlček,

Geršl

et al. 2024

Front. Environ. Sci.

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The Hranice hypogenic karst region includes urban, spa and agricultural areas and industry complexes that affect water quality in the region. Emerging organic contaminants (EOCs), especially pesticides and pharmaceuticals, are released into the complex aquatic system. These substances and their metabolites can affect aquatic and human life, as well as the regional development of the wider area traditionally associated with the spa. In this study, we conducted preliminary screening for pesticides and pharmaceuticals at 33 sampling sites and across different location types, including surface water, drainage water, a shallow well, groundwater and thermal karst water. Sampling occurred between February 2022 and June 2023. The results generally confirm that current land use is causing pollution in the karst system. The monitored substances were present in all water types, and in most cases the concentrations of pesticides were lower than those of their metabolites. Chloridazon desphenyl (DESPH) is the most widespread pesticide in surface, ground and hypogenic waters. Its concentrations in surface waters were 5.7 ng·L−1–2,230 ng·L−1, in groundwaters were 11.3 ng·L−1–1,490 ng·L−1 and in karst hypogenic waters 5.4 ng·L−1–378 ng·L−1. Diclofenac was the most widespread substance from the pharmaceutical group. Its concentrations ranged from 5.6 ng·L−1–549 ng·L−1 in surface waters, 8.4 ng·L−1–112 ng·L−1 in groundwaters and 5.1 ng·L−1–47.4 ng·L−1 in karst hypogenic waters. Directly in the karst hypogenic waters, the following EOCs were repeatedly detected: atrazine and its metabolites, simazin, metazachlor ethane sulfonic acid (ESA), metolachlor ESA, alachlor ESA, chloridazon DESPH, diclofenac, ibuprofen, azithromycin, bisphenol A and diethyltoluamide (DEET). The initial research hypothesis is that hydrothermal karst waters are of sub-recent age and deep circulation and, unlike surface and groundwaters, are not contaminated by recent pollutants. A certain component of these waters is therefore a shallow and shorter circulation.

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Agricultural pesticide residues in water from a karstic aquifer in Yucatan, Mexico, pose a risk to children’s health

Cited by 18 publications

References 37 publications

Organochlorine and organophosphate pesticides in soils of a vulnerable area from an aquifer in Northern Colombia

Organochlorine and organophosphate pesticides in soils of a vulnerable area from an aquifer in Northern Colombia

Effect and mechanism of NaHS on tobacco bacterial wilt caused by Ralstonia solanacearum

Occurrence and path pollution of emerging organic contaminants in mineral water of Hranice hypogenic Karst

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